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Vulcanizable compositions based on elastomeric copolymers of vinylidene fluoride, process for vulcanization thereof utilizing phosphorous metal coordination complex and vulcanized compositions obtained thereby

US 4,062,830 A · Assignee: Montedison S.p.A. · Inventors: Ceccato; Giovanni et al.

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed June 2, 1975 and granted December 13, 1977. A patent filed before June 8, 1995 lasts 17 years from grant or 20 from filing, whichever is longer, so its term ended June 2, 1995.
  • Any extension is capped at five years, so it can't still be in force.
  • We haven't checked its US family, and a later related patent could still be in force. We check US rights only.
FiledJune 2, 1975
GrantedDecember 13, 1977
Term endedJune 2, 1995
Application number05/582931
Classification (CPC)C08K13/02 +2 more
Length11 pages

Timeline

Timeline From USPTO dates

1976197819801982198419861988199019921994Application filedJune 2, 1975Patent grantedDec 13, 1977Term endedJune 2, 1995

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